Cisco Intern interview questions

I had a video conference with one of their senior hiring managers. The atmosphere was normal (I was personally stressed, but that is normal for me). He asked about who I was, what my goals were, and what my previous experiences were. I believe that part went well. Then he asked me to debug a piece of C++ code (which was my area of expertise). Unfortunately I had not looked at C++ in nearly a year, so I was unable to debug it at all. Panicking did not help. The atmosphere was tense after that, although he tried to make it calming but clearly telegraphed that my chances with Cisco were shot